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Nexperia USA Inc. 74LVC377DB,112
- Part No.:
- 74LVC377DB,112
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Flip Flops
- Package:
- 20-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
74LVC377DB,112.pdf
- Description:
- IC FF D-TYPE SNGL 8BIT 20SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,856
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Product details
Overview
74LVC377DB,112 from Nexperia is an octal positive-edge-triggered D-type flip-flop with asynchronous data enable (active LOW), operating across 1.2 V to 3.6 V supply, supporting 5.5 V-tolerant inputs for mixed-voltage interfacing, and rated for -40 °C to +125 °C ambient operation in SO20 (SOT163-1) package. It delivers 8-bit synchronous data latching in digital control, bus buffering, and state-holding applications.
For engineers reviewing the 74LVC377DB,112 datasheet, 74LVC377DB,112 pinout, 74LVC377DB,112 application, or 74LVC377DB,112 equivalent, key selection considerations include its 1.2–3.6 V VCC range, 5.5 V overvoltage-tolerant inputs, 9.5 ns max propagation delay at 3.6 V/125 °C, 2.0 ns minimum set-up time, and SO20 pin-compatible footprint for legacy LVC logic upgrades.
Technical Context
This device implements eight independent D-type flip-flops sharing a common clock (CP) and global data enable (E) input. Each flip-flop captures Dn on the LOW-to-HIGH CP transition only when E is LOW; outputs retain prior state when E is HIGH.
Its CMOS architecture enables direct interface with TTL-level signals and supports translation between 3.3 V and 5 V logic domains via 5.5 V-tolerant inputs. Operation is specified across -40 °C to +125 °C with static and dynamic parameters fully characterized at both temperature extremes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 1.2 V to 3.6 V - Enables single-supply operation in low-voltage embedded systems and battery-powered logic interfaces. |
| Input Voltage Tolerance | Up to 5.5 V - Allows safe connection to 5 V drivers without level-shifting circuitry in mixed-voltage designs. |
| tpd (max) | 9.5 ns at VCC = 3.6 V, Tamb = +125 °C - Supports reliable 100+ MHz system clocking with timing margin in high-temp industrial environments. |
| tsu (min) | 2.0 ns at VCC = 3.6 V - Defines minimum Dn/E setup window before CP edge, critical for timing closure in synchronous pipelines. |
| fmax (min) | 120 MHz at VCC = 3.6 V, Tamb = +125 °C - Validates usable clock frequency under worst-case thermal and voltage conditions. |
| ESD Rating | HBM >2000 V, CDM >1000 V - Ensures robustness during PCB handling and assembly without additional protection circuitry. |
| Operating Temp | -40 °C to +125 °C - Qualified for under-hood automotive modules, industrial PLCs, and telecom infrastructure where extended thermal range is mandatory. |
Pinout & Package
74LVC377DB,112 is supplied in SO20 plastic small outline package (SOT163-1), 20-pin, 7.5 mm body width, with standard 1.27 mm lead pitch and gull-wing leads compatible with automated SMT assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | E | Data enable input (active LOW); gates all eight D-to-Q transfers - must be stable ≥2.0 ns before CP rising edge for predictable capture. |
| 2 | Q0 | Output of first flip-flop; driven HIGH/LOW based on D0 state sampled at CP rising edge when E = LOW. |
| 3 | D0 | Data input for Q0; sampled synchronously on CP rising edge only if E = LOW. |
| 4 | D1 | Data input for Q1; functionally identical to D0 with independent output Q1 on pin 5. |
| 5 | Q1 | Output of second flip-flop; matches D1 state captured at same CP edge as Q0. |
| 6 | Q2 | Output of third flip-flop; shares CP and E with all others but operates independently per D2 (pin 7). |
| 7 | D2 | Data input for Q2; one of eight parallel D inputs aligned to corresponding Q outputs. |
| 8 | D3 | Data input for Q3; pin 9 is Q3 - forms first quartet (D0–D3/Q0–Q3) in left half of SO20 package. |
| 9 | Q3 | Output of fourth flip-flop; completes lower-nibble latching group. |
| 10 | GND | Ground reference (0 V) for all internal circuitry and I/O; requires low-impedance PCB plane connection. |
| 11 | CP | Clock input (LOW-to-HIGH edge-triggered); rising edge initiates sampling of all enabled D inputs. |
| 12 | Q4 | Output of fifth flip-flop; begins upper-nibble group (D4–D7/Q4–Q7) on right side of SO20. |
| 13 | D4 | Data input for Q4; electrically isolated but synchronized to same CP and E control. |
| 14 | D5 | Data input for Q5; pin 15 is Q5 - maintains consistent Dn/Qn pairing across all eight channels. |
| 15 | Q5 | Output of sixth flip-flop; matches D5 state captured at CP edge when E = LOW. |
| 16 | Q6 | Output of seventh flip-flop; pin 17 is D6 - ensures full octal symmetry in layout and timing. |
| 17 | D6 | Data input for Q6; positioned adjacent to Q6 for minimized trace skew in high-speed routing. |
| 18 | D7 | Data input for Q7; final D input in octal set; pin 19 is Q7 - completes functional mapping. |
| 19 | Q7 | Output of eighth flip-flop; provides last bit of parallel latch output; used in byte-wide data capture. |
| 20 | VCC | Positive supply rail (1.2–3.6 V); decoupling capacitor (100 nF) required within 5 mm of this pin for noise immunity. |
Key Features
| Feature | Design Value |
|---|---|
| Wide VCC range | 1.2 V to 3.6 V operation enables compatibility with modern ultra-low-power microcontrollers and legacy 3.3 V systems without voltage translation. |
| 5.5 V overvoltage-tolerant inputs | Eliminates need for external clamping diodes or level shifters when interfacing with 5 V peripherals in mixed-signal boards. |
| Industrial temperature grade | -40 °C to +125 °C qualification ensures reliable operation in motor drives, power supplies, and base station equipment without derating. |
| Low dynamic power dissipation | CPD = 19.0 pF at 3.3 V enables sub-mW switching power at 10 MHz, reducing thermal load in dense logic arrays. |
| JEDEC-compliant I/O standards | Meets JESD8-7A, JESD8-5A, and JESD8-C/JESD36 for interoperability with industry-standard 1.8 V, 2.5 V, and 3.3 V logic families. |
Applications
| Industrial Control Logic | Memory Interface Buffering |
|---|---|
|
Use Scenario: Latching sensor data from 8-bit parallel ADCs in programmable logic controllers (PLCs) before CPU read cycles. IC Role / Device Role / Timing Role: Octal D-flip-flop acting as synchronous input register, capturing all eight bits simultaneously on a shared clock edge gated by enable signal. Use Value: Eliminates metastability risk in multi-bit parallel acquisition and ensures deterministic sampling aligned to system timing reference. |
Use Scenario: Holding address or control bits between memory controller and SRAM/Flash devices with asynchronous access windows. IC Role / Device Role / Timing Role: Data enable-controlled latch providing glitch-free hold of memory address lines during bus turnaround or arbitration delays. Use Value: Prevents spurious memory accesses during state transitions by freezing address bus until valid setup time is met. |
| Automotive Body Electronics | Test Equipment Signal Conditioning |
|
Use Scenario: Capturing switch status from 8-position rotary encoders or door/window position sensors in vehicle body control modules. IC Role / Device Role / Timing Role: Edge-triggered storage element converting momentary mechanical inputs into stable digital states synchronized to MCU clock domain. Use Value: Provides ESD-hardened, temperature-stable latching without software debouncing overhead in safety-critical subsystems. |
Use Scenario: Isolating and synchronizing digital stimulus patterns from pattern generators to DUT inputs in ATE systems. IC Role / Device Role / Timing Role: Input register aligning asynchronous test vectors to system clock domain while suppressing noise-induced false triggers. Use Value: Reduces pattern jitter and improves test repeatability by enforcing strict set-up/hold timing on all eight data lines. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal D-type flip-flop applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC377APWR | TSSOP20 (SOT360-1) package; identical electrical specs but 4.4 mm body width and 0.65 mm pitch - not pin-compatible with SO20. | Preferred for space-constrained PCBs; requires layout revision due to different footprint and thermal profile. | Select when board area is limited and rework of land pattern is acceptable; verify thermal performance at 125 °C with reduced copper exposure. |
| 74LVC574AD,118 | Octal D-type latch (transparent) vs. edge-triggered flip-flop; no clock enable; outputs follow inputs when LE is LOW. | Suitable for simple data capture without precise edge alignment; unsuitable for synchronous pipeline stages requiring strict clock-edge registration. | Choose only for non-critical hold functions where timing predictability is secondary to cost; avoid in clock-domain crossing or high-speed control loops. |
Compared with SN74LVC377APWR, 74LVC377DB,112 offers superior thermal dissipation in SO20 and drop-in replacement for legacy designs, while 74LVC574AD,118 trades edge-triggered precision for transparency - making it unfit for applications requiring deterministic sampling instants.
Availability
74LVC377DB,112 is available at Aetrix Electronics and suitable for industrial control logic, memory interface buffering, automotive body electronics, and test equipment signal conditioning requiring stable component supply across extended temperature ranges.
Supply support for 74LVC377DB,112 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Nexperia is a leading semiconductor manufacturer specializing in high-performance logic, analog, and discrete components, with core expertise in energy-efficient, high-reliability solutions for automotive, industrial, and consumer markets.
The 74LVC377 belongs to Nexperia's LVC (Low-Voltage CMOS) logic family, designed specifically for robust, low-power, mixed-voltage digital interfacing in demanding industrial and automotive environments.
FAQ
What is the maximum clock frequency supported by 74LVC377DB,112 at 3.3 V and +125 °C?
The device guarantees a minimum operating frequency of 120 MHz under those conditions, as confirmed in Table 7 (Dynamic characteristics) of the Rev. 8 datasheet. This value reflects worst-case timing across process, voltage, and temperature corners, ensuring reliable operation in thermally stressed industrial deployments without derating.
Can 74LVC377DB,112 safely interface with 5 V microcontroller GPIOs?
Yes - its inputs are overvoltage tolerant up to 5.5 V regardless of VCC level (1.2–3.6 V), allowing direct connection to 5 V outputs without external resistors or level shifters. This capability is explicitly validated in Section 2 (Features and benefits) and Table 4 (Limiting values) of the datasheet.
Is the SO20 package of 74LVC377DB,112 RoHS compliant and lead-free?
Yes - Nexperia confirms RoHS compliance and lead-free construction for all SOT163-1 packaged 74LVC377 variants, including 74LVC377DB,112. This is documented in the "Ordering information" table and supported by Nexperia's official material declarations accessible via their product page and compliance portal.
Does 74LVC377DB,112 require external pull-up or pull-down resistors on E or CP inputs?
No - the device has no internal weak pull-ups or pull-downs on E or CP. However, in floating-input scenarios (e.g., unconnected enable), external biasing is required to prevent undefined output behavior. The datasheet specifies that E must be stable one set-up time before CP edge; leaving it uncontrolled violates functional requirements in Table 3 (Function table).
74LVC377DB,112 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74LVC
- Package/Case:
- 20-SSOP (0.209", 5.30mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Function:
- Standard
- Type:
- D-Type
- Output Type:
- Non-Inverted
- Number of Elements:
- 1
- Number of Bits per Element:
- 8
- Clock Frequency:
- 330 MHz
- Max Propagation Delay @ V, Max CL:
- 7.6ns @ 3.3V, 50pF
- Trigger Type:
- Positive Edge
- Current - Output High, Low:
- 24mA, 24mA
- Voltage - Supply:
- 1.65V ~ 3.6V
- Current - Quiescent (Iq):
- 10 µA
- Input Capacitance:
- 5 pF
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-SSOP
74LVC377DB,112 FAQ
1.How can I place an order for 74LVC377DB,112 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVC377DB,112 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for 74LVC377DB,112 reliable?
The price and inventory of 74LVC377DB,112 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVC377DB,112 is usually 5 days.
3.What payment methods are accepted for 74LVC377DB,112?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVC377DB,112 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LVC377DB,112?
74LVC377DB,112 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVC377DB,112 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for 74LVC377DB,112?
For technical support, including 74LVC377DB,112 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVC377DB,112 requirements.
6.How does Aetrix verify that 74LVC377DB,112 is sourced from the original manufacturer or authorized distributors?
All 74LVC377DB,112 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that 74LVC377DB,112 meets industry standards.
7.What is the process for return or replacement of 74LVC377DB,112?
All 74LVC377DB,112 units undergo pre-shipment inspection (PSI). If there is an issue with 74LVC377DB,112, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The 74LVC377DB,112 part is unused and in its original packaging.
Return procedure for 74LVC377DB,112:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74LVC377DB,112 Tags
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SN74HC74DR
Texas Instruments
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